Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1983-05-31
1985-02-05
Parker, Roscoe V.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
83666, 403348, B24B 4500
Patent
active
044971419
ABSTRACT:
Apparatus for smoothing, cutting, grinding and polishing with a disc, comprise a disc drive having a head including a disc retainer member insertable for formfitting interlock into an oblong central hole of the disc. The head is undercut by grooves cooperating with the disc and delimiting means forming a bayonet-type interlock for rotation in a first sense as well as for rotation in an opposite second sense.
REFERENCES:
patent: 505490 (1893-09-01), Stanbrough
patent: 1307017 (1919-06-01), Movshovitch
patent: 1907319 (1933-05-01), Engelfried
Dental-Dienst, No. 2/81, pp. 18-26.
Tandelaegebladet, vol. 1980:84: No. 13:5379.
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